Lifting mechanism and air brake overhaul transition platform

Abstract

The utility model relates to the field of air brake maintenance, and discloses a lifting mechanism and an air brake maintenance transition platform, the lifting mechanism comprises a main body component, the main body component comprises a support cylinder, a first lifting assembly installed in the support cylinder, and a second lifting assembly installed in the first lifting assembly, the power assembly and the supporting component are installed on the outer side of the supporting cylinder, the supporting component comprises a base installed on the outer side of the supporting cylinder and supporting feet installed on the outer side of the base, the first lifting assembly can ascend and descend in the supporting cylinder, the second lifting assembly can ascend and descend in the first lifting assembly, and the first lifting assembly can ascend and descend in the second lifting assembly. The power assembly provides power for lifting of the first lifting assembly and the second lifting assembly. Through mutual cooperation of all the parts, the platform can be lifted and lowered by the first lifting rod and the second lifting rod, so that the air brake placed on the outer side of the platform ascends and descends, and the purpose of easily disassembling and assembling the air brake is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a damper overhauling field especially a lifting mechanism and damper overhauling transition platform. BACKGROUND

[0002] The damper overhauling of the brake of the vertical water turbine generator is one of the overhauling projects of the water turbine generator unit, at present, the damper cannot be overhauled on the spot when the rotor is not hoisted out, must be disassembled, and is installed after the overhauling is completed. But under the condition that the rotor is not hoisted out, when the damper appears technical defects and affects the safe and reliable operation of the unit, how to find a kind of water turbine generator damper dismounting and mounting method that can effectively solve the current damper hoisting problem and save manpower, material resources and time and effectively improve the dismounting efficiency is considered by mechanical overhauling personnel.

[0003] At present, the damper is usually pulled out from high place by manual rope, however, this process needs to pull the damper horizontally and place it stably on the ground from high place, due to the large weight of the damper, manual operation is difficult to complete the horizontal pulling and stable descending of the damper at the same time. CONTENT OF THE UTILITY MODEL

[0004] Therefore, the technical problem to be solved by the utility model lies in: how to easily realize the dismounting and mounting of the damper.

[0005] The above technical problem is solved by the following technical scheme: the utility model provides a lifting mechanism, which comprises,

[0006] A main body component, which comprises a supporting cylinder, a first lifting assembly installed inside the supporting cylinder, a second lifting assembly installed inside the first lifting assembly, and a power assembly installed outside the supporting cylinder;

[0007] A supporting component, which comprises a base installed outside the supporting cylinder and a supporting leg installed outside the base;

[0008] The first lifting assembly can be lifted inside the supporting cylinder, the second lifting assembly can be lifted inside the first lifting assembly, and the power assembly provides power for the lifting of the first lifting assembly and the second lifting assembly;

[0009] The base and the supporting leg are used to improve the stability of the supporting cylinder.

[0010] In a preferred embodiment of the lifting mechanism: the supporting cylinder comprises a supporting cylinder body, a sliding groove opened inside the supporting cylinder body and a through groove opened inside the supporting cylinder body.

[0011] In a preferred embodiment of the lifting mechanism: the first lifting assembly comprises a first lifting rod, a long slot formed in the first lifting rod, a rack fixedly connected to the outer side of the first lifting rod, an outer hoop fixedly connected to the outer side of the first lifting rod, and a roller fixedly connected to the outer side of the outer hoop.

[0012] The first lifting rod and the rack are slidingly connected in the sliding groove.

[0013] In a preferred embodiment of the lifting mechanism: the second lifting assembly comprises a second lifting rod slidingly connected in the long slot, a wire containing groove formed in the second lifting rod, and a connecting rod fixedly connected in the wire containing groove.

[0014] In a preferred embodiment of the lifting mechanism: the power assembly comprises an outer shell fixedly connected to the outer side of the support cylinder body, a worm and a turbine rotatingly connected in the outer shell, a connecting rod fixedly connected to the outer side of the worm, a gear rotatingly connected in the outer shell, and a connecting line provided on the outer side of the outer shell.

[0015] The worm is engaged with the turbine, the gear is coaxially connected with the turbine, one end of the connecting line is fixedly connected to the outer side of the outer shell, the other end of the connecting line is fixedly connected to the outer side of the connecting rod, and the gear is engaged with the rack.

[0016] In a preferred embodiment of the lifting mechanism: the base comprises an arc plate fixedly connected to the outer side of the support cylinder body, a first clamping groove and a second clamping groove formed in the arc plate.

[0017] In a preferred embodiment of the lifting mechanism: the supporting leg comprises a supporting leg body, a rotating shaft fixedly connected to the outer side of the supporting leg body, a matching groove formed in the supporting leg body, a sliding rod slidingly connected in the matching groove, and a spring.

[0018] The rotating shaft is rotatingly connected with the arc plate, and the spring is fixedly connected at both ends with the rotating shaft and the sliding rod.

[0019] The utility model discloses still provide a kind of air brake maintenance transition platform.

[0020] In a preferred embodiment of the air brake maintenance transition platform: an air brake maintenance transition platform, comprising the lifting mechanism, further comprising,

[0021] Transition mechanism, the transition mechanism includes mounting seat, platform is installed in the outer side of the mounting seat;

[0022] The mounting seat comprises a mounting cylinder fixedly connected outside the second lifting rod.

[0023] In a preferred embodiment of the air door maintenance transition platform, the mounting seat further comprises a mounting plug rod and a first butterfly bolt threadedly connected outside the mounting cylinder.

[0024] The mounting plug rod is slidable inside the mounting cylinder.

[0025] In a preferred embodiment of the air door maintenance transition platform, the platform comprises a long rod, a platform body and a bolt, the platform body is connected outside the long rod through the bolt, a matching cylinder is fixedly connected outside the long rod, and a second butterfly bolt is threadedly connected outside the matching cylinder.

[0026] The air door placed outside the platform can be lifted and lowered by the first lifting rod and the second lifting rod, so that the air door can be easily disassembled and assembled. BRIEF DESCRIPTION OF DRAWINGS

[0027] In order to make the technical solutions of the embodiments of the present application clearer, the drawings of the embodiments of the present application will be briefly introduced below. Obviously, the drawings described below only relate to some embodiments of the present application, but not limit the present application. Among them:

[0028] Figure 1 The overall structure schematic diagram of the present application is shown;

[0029] Figure 2 The main component split schematic diagram of the present application is shown;

[0030] Figure 3 The power assembly schematic diagram of the present application is shown;

[0031] Figure 4 The main component split schematic diagram of the present application is shown;

[0032] Figure 5 The support component schematic diagram of the present application is shown;

[0033] Figure 6 The transition mechanism schematic diagram of the present application is shown. DETAILED DESCRIPTION

[0034] In order to make the technical solutions of the embodiments of the present application clearer, the drawings of the embodiments of the present application will be briefly introduced below. Obviously, the drawings described below only relate to some embodiments of the present application, but not limit the present application. Among them:

[0035] The terms used in the present utility model are those general terms currently widely used in the art in consideration of the functions of the present utility model, but the terms can be changed according to the intention, precedent or new technology of the ordinary skilled person in the art. In addition, specific terms can be selected by the applicant, and in this case, the detailed meaning thereof will be described in the detailed description of the present utility model. Therefore, the terms used in the specification should not be understood as mere names, but based on the meaning of the terms and the overall description of the present utility model.

[0036] Referring to Figures 1-6 The embodiment provides a lifting mechanism, comprising,

[0037] The main body part 1 comprises a support cylinder 11, a first lifting assembly 12 installed inside the support cylinder 11, a second lifting assembly 13 installed inside the first lifting assembly 12, and a power assembly 14 installed outside the support cylinder 11.

[0038] The support part 2 comprises a base 21 installed outside the support cylinder 11, and a support leg 22 installed outside the base 21.

[0039] The first lifting assembly 12 can be lifted inside the support cylinder 11, the second lifting assembly 13 can be lifted inside the first lifting assembly 12, the power assembly 14 provides power for the lifting of the first lifting assembly 12 and the second lifting assembly 13, and the top end of the second lifting assembly 13 is provided with a damper maintenance transition platform.

[0040] The base 21 and the support leg 22 are used to improve the stability of the support cylinder 11.

[0041] When the damper needs to be maintained, the support cylinder 11 is placed at the damper dismounting position, and the support part 2 is used to fix the support cylinder 11, then the power assembly 14 is used to lift the first lifting assembly 12 and the second lifting assembly 13 until the damper maintenance transition platform at the top of the second lifting assembly 13 is flush with the damper.

[0042] The worker pulls the damper through the rope, moves the damper horizontally to the top of the damper maintenance transition platform, and then uses the power assembly 14 to lower the first lifting assembly 12 and the second lifting assembly 13, so as to complete the dismounting work of the damper.

[0043] Compared with the traditional manual method of horizontally pulling out the damper through the rope and then slowly lowering the damper through the rope, the device can greatly reduce the work burden of the worker.

[0044] As in one embodiment provided in the present application, as Figures 1-5The supporting cylinder 11 comprises a supporting cylinder body 111, a sliding groove 112 formed in the supporting cylinder body 111, and a through groove 113 formed in the supporting cylinder body 111.

[0045] The first lifting assembly 12 comprises a first lifting rod 121, a long slot 122 formed in the first lifting rod 121, a rack 123 fixedly connected to the outside of the first lifting rod 121, an outer hoop 124 fixedly connected to the outside of the first lifting rod 121, and a roller 125 fixedly connected to the outside of the outer hoop 124.

[0046] The roller 125 can be provided with a bearing.

[0047] The first lifting rod 121 and the rack 123 are slidingly connected in the sliding groove 112.

[0048] The second lifting assembly 13 comprises a second lifting rod 131 slidingly connected in the long slot 122, a wire containing groove 132 formed in the second lifting rod 131, and a connecting rod 133 fixedly connected in the wire containing groove 132.

[0049] The power assembly 14 comprises an outer shell 141 fixedly connected to the outside of the supporting cylinder body 111, a worm 142 and a turbine 144 rotatably connected in the outer shell 141, a connecting rod 143 fixedly connected to the outside of the worm 142, a gear 145 rotatably connected in the outer shell 141, and a connecting wire 146 provided on the outside of the outer shell 141.

[0050] The connecting wire 146 can be a steel cable, a chain, etc.

[0051] The worm 142 is engaged with the turbine 144, the gear 145 is coaxially connected with the turbine 144, one end of the connecting wire 146 is fixedly connected to the outside of the outer shell 141, and the other end of the connecting wire 146 is fixedly connected to the outside of the connecting rod 133.

[0052] When the connecting wire 146 is connected with the outer shell 141 and the connecting rod 133, it will bypass the roller 125.

[0053] The gear 145 is engaged with the rack 123, and the through groove 113 is used to provide a contact position for the engagement of the gear 145 and the rack 123.

[0054] When it is necessary to disassemble the air brake, the worker connects the wrench with the connecting rod 143, rotates the wrench to drive the connecting rod 143 to rotate the worm 142, the worm 142 drives the turbine 144 to rotate, since the turbine 144 is coaxially connected with the gear 145, the rotation of the turbine 144 drives the gear 145 to rotate synchronously, and since the gear 145 is engaged with the rack 123, the rotation of the gear 145 drives the rack 123 to rise, thereby driving the first lifting rod 121 to rise.

[0055] As attached Figure 4 As shown, when the first lifting rod 121 rises, the outer hoop 124 will also rise synchronously. Therefore, the connecting line 146 passes around the roller 125 and connects to the connecting rod 133. The position of the outer shell 141 connected to one end of the connecting line 146 remains unchanged, and the length of the connecting line 146 remains unchanged. Therefore, when the outer hoop 124 rises, it will cause the connecting rod 133 to rise, thereby causing the connecting rod 133 to drive the second lifting rod 131 to rise until the second lifting rod 131 rises to the level of the air gate maintenance transition platform and the air gate, and then the wrench is stopped.

[0056] It is worth noting that when the airlock is moved to the airlock maintenance transition platform, due to the inherent characteristics of the worm gear 142 and the turbine 144, the worm gear 142 can drive the turbine 144 to rotate the rod, while the turbine 144 cannot drive the worm gear 142 to rotate. Therefore, the weight of the airlock will not cause the second lifting rod 131 to descend. When it is necessary to descend, it can only be achieved by reversing the worm gear 142.

[0057] After the airlock is moved to the airlock maintenance transition platform, the staff reverses the wrench, which causes the worm gear 142 to drive the turbine 144 to reverse, which in turn causes the gear 145 to reverse, so that the first lifting rod 121 and the second lifting rod 131 can be lowered, thereby achieving the effect of lowering the airlock.

[0058] As one embodiment provided in this application, such as Figures 1-6 The base 21 includes an arc plate 211 fixedly connected to the outside of the support cylinder body 111, and a first slot 212 and a second slot 213 opened inside the arc plate 211.

[0059] The support leg 22 includes a support body 221, a pivot 222 fixedly connected to the outside of the support body 221, a mating groove 223 opened inside the support body 221, a slide rod 224 slidably connected inside the mating groove 223, and a spring 225.

[0060] The rotating shaft 222 is rotatably connected to the arc plate 211, and the two ends of the spring 225 are fixedly connected to the rotating shaft 222 and the slide rod 224, respectively.

[0061] When the support cylinder 11 is placed on the ground, the worker pulls the slide bar 224, causing the slide bar 224 to disengage from the first slot 212, and the spring 225 is stretched.

[0062] Rotate the support body 221 to make it contact the ground, and then release the slide rod 224. Under the action of the spring 225, the slide rod 224 will move into the second slot 213. At this time, the support body 221 will not rotate due to the cooperation and obstruction of the second slot 213 and the slide rod 224, so it can play the role of supporting the support cylinder 11.

[0063] ReferenceFigures 1-6 This embodiment provides a transition platform for the maintenance of an airlock, including a lifting mechanism, and also includes...

[0064] The transition mechanism 3 includes a mounting base 31 and a platform 32 mounted on the outside of the mounting base 31.

[0065] Mounting base 31 includes mounting cylinder 311, which is fixedly connected to the outside of the second lifting rod 131.

[0066] The mounting base 31 also includes a mounting rod 312 and a first wing bolt 313 threaded to the outside of the mounting cylinder 311;

[0067] The mounting rod 312 can slide inside the mounting cylinder 311.

[0068] Platform 32 includes a long rod 321, a platform body 322, and bolts 323. Platform body 322 is connected to the outside of long rod 321 by bolts 323. A mating sleeve 324 is fixedly connected to the outside of long rod 321, and a second wing bolt 325 is threadedly connected to the outside of mating sleeve 324.

[0069] like Figure 6 As shown, when installing the platform body 322, the platform body 322 can be connected to the long rod 321 by bolts 323 first, and then the platform body 322 can be placed on top of the mounting cylinder 311. At this time, the mating cylinder 324 is aligned with the central axis of the mounting cylinder 311, and the mounting rod 312 passes through the mounting cylinder 311 and the mating cylinder 324 at the same time. At this time, the initial installation is completed.

[0070] By tightening the first wing bolt 313 to press the mounting rod 312, and by tightening the second wing bolt 325 to press the mounting rod 312, the installation of the platform 32 can be completed.

[0071] In summary, through the cooperation of various components, the platform 32 can be raised and lowered by the first lifting rod 121 and the second lifting rod 131, thereby raising and lowering the airlock placed on the outside of the platform 32, so as to achieve the purpose of easy assembly and disassembly of the airlock.

[0072] Finally, it should be noted that the methods and devices described in detail above are merely embodiments, and those skilled in the art can modify these embodiments in different ways as long as they do not depart from the scope of this utility model.

Claims

1. A lifting mechanism, characterized in that: include, The main component (1) includes a support cylinder (11), a first lifting assembly (12) installed inside the support cylinder (11), a second lifting assembly (13) installed inside the first lifting assembly (12), and a power assembly (14) installed outside the support cylinder (11). The support component (2) includes a base (21) installed on the outside of the support cylinder (11) and a support foot (22) installed on the outside of the base (21); The first lifting assembly (12) can be lifted and lowered inside the support cylinder (11), the second lifting assembly (13) can be lifted and lowered inside the first lifting assembly (12), and the power assembly (14) provides power for the lifting and lowering of the first lifting assembly (12) and the second lifting assembly (13); The base (21) and the support leg (22) are used to improve the stability of the support cylinder (11).

2. The lifting mechanism according to claim 1, characterized in that: The support cylinder (11) includes a support cylinder body (111), a sliding groove (112) formed inside the support cylinder body (111), and a through groove (113) formed inside the support cylinder body (111).

3. The lifting mechanism according to claim 2, characterized in that: The first lifting assembly (12) includes a first lifting rod (121), an elongated groove (122) opened inside the first lifting rod (121), a rack (123) fixedly connected to the outside of the first lifting rod (121), an outer hoop (124) fixedly connected to the outside of the first lifting rod (121), and a roller (125) fixedly connected to the outside of the outer hoop (124). The first lifting rod (121) and the rack (123) are slidably connected inside the slide groove (112).

4. The lifting mechanism according to claim 3, characterized in that: The second lifting assembly (13) includes a second lifting rod (131) slidably connected inside the long groove (122), a wire receiving groove (132) opened inside the second lifting rod (131), and a connecting rod (133) fixedly connected inside the wire receiving groove (132).

5. The lifting mechanism according to claim 4, characterized in that: The power assembly (14) includes a housing (141) fixedly connected to the outside of the support cylinder body (111), a worm (142) and a turbine (144) rotatably connected inside the housing (141), a connecting rod (143) fixedly connected to the outside of the worm (142), a gear (145) rotatably connected inside the housing (141), and a connecting line (146) provided on the outside of the housing (141). The worm (142) meshes with the turbine (144), the gear (145) is coaxially connected with the turbine (144), one end of the connecting line (146) is fixedly connected to the outside of the housing (141), the other end of the connecting line (146) is fixedly connected to the outside of the connecting rod (133), and the gear (145) meshes with the rack (123).

6. The lifting mechanism according to claim 5, characterized in that: The base (21) includes an arc plate (211) fixedly connected to the outside of the support cylinder body (111), and a first slot (212) and a second slot (213) opened inside the arc plate (211).

7. The lifting mechanism according to claim 6, characterized in that: The support leg (22) includes a support body (221), a pivot (222) fixedly connected to the outside of the support body (221), a mating groove (223) opened inside the support body (221), a slide rod (224) slidably connected inside the mating groove (223), and a spring (225). The rotating shaft (222) is rotatably connected to the arc plate (211), and the two ends of the spring (225) are fixedly connected to the rotating shaft (222) and the slide rod (224) respectively.

8. A transition platform for the maintenance of a ventilation damper, characterized in that: Including the lifting mechanism according to any one of claims 4 to 7, and further comprising, The transition mechanism (3) includes a mounting base (31) and a platform (32) mounted on the outside of the mounting base (31); The mounting base (31) includes a mounting cylinder (311), which is fixedly connected to the outside of the second lifting rod (131).

9. The air damper maintenance transition platform according to claim 8, characterized in that: The mounting base (31) also includes a mounting rod (312) and a first wing bolt (313) threaded to the outside of the mounting cylinder (311); The mounting rod (312) can slide inside the mounting cylinder (311).

10. The air damper maintenance transition platform according to claim 9, characterized in that: The platform (32) includes a long rod (321), a platform body (322) and bolts (323). The platform body (322) is connected to the outside of the long rod (321) by the bolts (323). A fitting sleeve (324) is fixedly connected to the outside of the long rod (321), and a second wing bolt (325) is threadedly connected to the outside of the fitting sleeve (324).

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